diff --git a/.github/workflows/conventional-commits.yaml b/.github/workflows/conventional-commits.yaml
index ab96eb510..bfe3bd937 100644
--- a/.github/workflows/conventional-commits.yaml
+++ b/.github/workflows/conventional-commits.yaml
@@ -22,8 +22,9 @@ jobs:
             feat
             fix
             perf
-            style
             refactor
+            release
+            style
             test
       - uses: marocchino/sticky-pull-request-comment@v2
         if: always() && (steps.lint.outputs.error_message != null)
diff --git a/.gitignore b/.gitignore
index 1a9a2af7c..3982f5270 100644
--- a/.gitignore
+++ b/.gitignore
@@ -111,6 +111,9 @@ docs/source/reference/
 
 /.luarc.json
 
+# uv
+/uv.lock
+
 # Developer scratch area
 _dev/
 tests/playwright/deploys/**/requirements.txt
diff --git a/CHANGELOG.md b/CHANGELOG.md
index bc4cd377e..6ae82bc57 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ All notable changes to Shiny for Python will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [UNRELEASED]
+## [1.4.0] - 2025-04-08
 
 ## New features
 
@@ -17,8 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 * Both `ui.Chat()` and `ui.MarkdownStream()` now support the inclusion of Shiny UI elements inside of messages. This allows for gathering input from the user (e.g., `ui.input_select()`), displaying of rich output (e.g., `render.DataGrid()`), and more. (#1868)
 
-* Added a new `.message_stream_context()` method to `ui.Chat()`. This context manager is a useful alternative to `.append_message_stream()` when you want to: (1) Nest a stream within another and/or
-(2) Overwrite/replace streaming content. (#1906)
+* Added a new `.message_stream_context()` method to `ui.Chat()`. This context manager is a useful alternative to `.append_message_stream()` when you want to: (1) Nest a stream within another and/or (2) Overwrite/replace streaming content. (#1906)
 
 ### Changes